What Percentage Calculator
Find out what percentage one number is of another. Enter the part and the total below to get the answer instantly.
X is what percent of Y?
45 is this percent of 180
25%
How to find what percent one number is of another
Divide the part by the whole, then multiply by 100: percentage = (part ÷ whole) × 100.
Example: 45 out of 180 is (45 ÷ 180) × 100 = 25%.
Everyday examples
- A test: 18 correct out of 24 is 75%.
- A budget: spending 600 of a 2,000 income is 30%.
- A target: 8,000 of a 10,000 goal is 80% complete.
Frequently asked questions
What percentage is X of Y?
Divide X by Y and multiply by 100. For example, 45 is 25% of 180 because 45 ÷ 180 × 100 = 25.